Was re-reading the Apollo flight crew debriefings and came upon this unusual phrase. Pete Conrad of Apollo 12 described how he landed the Lunar Module as "milking her down." This reminds me of the prevalence of strange jargon when I worked on the Space Shuttle... 1/n Image
2/ I can't remember many of the strange phrases any more. (Sigh) But I remember this one:
"We need to put that dawwwg to bed!"
And "milking the job" meant taking too long to finish a job because you are lazy and dragging out the task as a way to avoid more work.
3/ I don't know why "milking it" came to mean being lazy and dragging out a task. I remember the jargon was always evolving and taking on new meanings. Maybe milking cows was a slow task? Maybe it meant you were getting all the benefit out of a task, like getting milk? Anyhow...
4/ ...Pete Conrad's phrase "milking her down" illustrates how the jargon in human spaceflight was always evolving. Landing a vehicle slowly is NOT the same as dragging out a task because of your laziness. But apparently, Pete generalized "milking" to mean "doing any job slowly".
5/ And as a result we ended up with bizarre phrases like this, as if an astronaut driving a spaceship is reminiscent of a farmer getting milk out of a cow. Hilarious!😂
Maybe this is the origin of Pete's phrase. Cool!

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More from @DrPhiltill

18 Dec
Rockets and Lasers! Results from NASA Flight Opportunities Program: successful flights of Ejecta STORM on the @mastenspace Xodiac rocket. This is a laser instrument that measures the properties of lunar dust. Read more: ucf.edu/news/ucf-devel… @UCF @NASAArmstrong @NASAfo
Working with @mastenspace, @Honeybee_Ltd, @NASAArmstrong on these tests was a great experience. @astroaddie and I have been developing this instrument with the UCF team over the past year. We delivered the instrument to the Mojave Air & Space Center last month. Image
Got the instrument installed onto the top of @mastenspace's Xodiac rocket. Honeybee Robotics flew their PlanetVac system on the same flight, enabling us to compare interactions in the simulated lunar soil. Installed several cameras. Set up and checked out the cameras. ImageImage
Read 18 tweets
20 Nov
1/n. We were discussing this comic by @xkcd while examining simulated lunar regolith, today. It came from this great piece about research by physicist Dr. Karen Daniels on why SAND PHYSICS is so dang difficult. (THREAD) nytimes.com/2020/11/09/sci… Image
2/ Once long ago, I co-chaired a workshop called "NASA's Workshop on Granular Mechanics in Lunar & Martian Exploration." The other co-chairs included some of the world's leading experts in "sand physics". I casually told them, "Yeah, I think it will take 50 years to solve this."
3/ Bob Behringer (Duke University, a world-renowned expert in sand physics) laughed in my face and said, "MORE LIKE 200 YEARS!" That was 20 years ago. If I were correct that it would take 50 years, we should have solved 40% of sand physics by now. If Bob were right, then 10%.
Read 19 tweets
8 Nov
Well, there they are! My logbooks containing years of research into how rocket exhaust blows soil.
2/ Remembering the strange things I looked into, so long ago... Analyzing the sandblasting on the Surveyor 3 landing strut, which was clipped off the Surveyor by Apollo 12 astronauts who visited its landing site 2.5 years later.
This is the one that went to a volcano for a field testing with a rocket thruster blowing volcanic ash. Poor notebook had a rough go of it!
Read 15 tweets
24 Oct
I was in Home Depot and saw the Farmer’s Almanac in the checkout line so I snapped this. Almanacs since the 1600s have been publishing lists of planets. It is a fascinating window into culture’s evolving ideas about planets. Astronomy textbooks don’t tell the true story. 1/N
2/ For example, in this 2020 almanac, the list is almost identical those going back to 1800 with only a few changes. 1) It includes Pluto. 2) It avoids calling the objects “planets”. It lumps them together with the lunar nodes and calls them “Celestial Symbols”. I was surprised!
3/ In the early 1800s, the public had *only just* converted to heliocentrism. It took 200 years after Galileo to be convinced. So in 1800 the public’s idea of “planets” was still the “Old Geocentric 7” including the Sun as a planet. Here are lists from almanacs in 1803 & 1806.
Read 26 tweets
5 Oct
Saw a gorgeous ant pile this morning. Because the soil particles were wet they had cohesion, and as the ants dropped them the normal distance from the hole they did not avalanche down the sides as usual. Instead, they built a vertical wall with an overhang. So fascinating!
Also noticed water droplets glistening on the large Elephant Ear leaves. Some leaves had droplets while others had none at all! I assume the older leaves lose their hydrophobic, waxy coatings so the water runs off, but that’s just a guess.
Also, check out the shape of the new Elephant Ear leaves as they are just beginning to unfurl. So interesting!
Read 10 tweets
18 Sep
Three scenarios how industry may develop in space. "Civilization Fully Revolutionized" means offloading industrial footprint from Earth to save the planet, all humans benefit from developed economies (health care, etc..."Post Scarcity"), vastly greater horizons for science...1 Image
2/...reaching to the stars. The Slow Growth Scenario means only government space agencies like NASA invest pre-economically in off-Earth industry, and we leave commercial businesses to slowly develop profitability and new business cases. Because space is hard, this is slow.
3/ The Rapid Bootstrapping Scenario means there are actors motivated to make it happen faster than the market forces will do. They may be visionary individuals with means, citizen-led movements, or governments that see the long-term benefit of getting beyond our planetary limit.
Read 9 tweets

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